Answer:
Consonance
Step-by-step explanation:
Consonance is a literary device in which identical or similar consonants are repeated in neighboring words whose vowel sounds are different. In the given excerpt, the consonant L is repeated several times:
- Blue with all malice, like a madman's flash...
The opposite of consonance is assonance - the repetition of vowel sounds.
Alliteration is a literary device in which a series of words begins with the same sound (not the same letter!).
Anaphora is a literary device in which the same word (or a group of words) is repeated at the beginning of neighboring clauses.